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What Is Condenser Approach. If approach is 4 or more its an indication your water cooled chiller has fouled tubes. If the condenser approach Condenser Approach Saturated Refrigerant Condensing Temperature Leaving Condenser Water Temperature is too high the capacity of the chiller will be negatively affected as the compressor may not be able to deliver as much capacity or must work much harder to achieve the same capacity as at the design approach temperatures as the. Condenser approach is heat transfer the water to gas of condenser efficiency is good less then below 2 F the system is working good. Approach is the temperature of the water leaving the cooling tower in this case 85F nominal minus the ambient web bulb temperature 78F wet bulb or 7F.
So the colder the water the better the KW efficiency. Condenser approach is heat transfer the water to gas of condenser efficiency is good less then below 2 F the system is working good. Range and Approach If you are still getting your bearings with cooling tower design terminology you may wonder what the terms approach and range mean. By definition approach is the difference between the leaving water and the saturated refrigerant temperature. To calculate the condenser approach temperature first obtain the temperature of the Freon refrigerant condensing temperature found on the lower shell side of the condenser heat exchanger. It does this by reducing the vapors temperature via thermodynamic contact with an external fluid of lower temperature.
Vacuum in a condenser is found to be 7085 mm Hg.
High Condenser Approach in Water Cooled Centrifugal Chiller imok2 Mechanical 11 Jul 06 0154 Higher approach temperatures are prime indicators that heat transfer efficiency is decreasing due to such factors as minerals scale mud algae and other impurities which increase thermal resistance and degrade the overall performance of the heat exchanger. Inlet and outlet temperatures of cooling water are 28C and 36C respectively. Approach is simply how many degrees warmer the liquid line leaving the condenser is than the air entering the condenser. In chiller lingo this measurement is called the approach. Using colder condenser water reduces the chiller KW by 1 to 15 per F. The approach method does not require gauges connected to the system but it does require a good temperature reading on the liquid line and suction line Shown using the Testo 115i clamp and 605i thermo-hygrometer smart probes.